How do you know micro organisms exist?

Answer 1

Microorganisms can be observed using microscopes, which reveal their presence in various environments, from soil and water to the human body. They can also be cultured in laboratories, allowing scientists to study their characteristics and behaviors. Additionally, microorganisms play crucial roles in processes like fermentation and decomposition, providing further evidence of their existence and importance in ecosystems. Advances in molecular Biology, such as DNA sequencing, have further confirmed their diversity and roles in various biological processes.